2001 TOYOTA SEQUOIA wire diagram

I24353
Body ECU
BC1ACT± J11 J10 D18
Door Lock Motor
Rear LH
J10
J10
J10 J11
J11
J11
J11B5
B5
B7ACT+
IB1 BC1 BA1
2
ACTD L±B
10 9
L±B L±B
L±B
L±B
L±R
L±R L±R
L±RL±R L±R
D21
Door Lock
Motor
Front RH
D20
Door Lock
Motor Front
LHD19
Door Lock
Motor Rear RHL±B
L±R
L±R
R±B L±BL±B
L±B
L±R L±R
R±B2 6
5
1 2
4 3 2
1
13C
A
12 10C
D
D
A E EE10
1
II2 IB1 BA1II2
10
9J/C
L±R
J/C
KD
NG J45
J44 DJJ/C
J34J33
CJ/C
I
J34
J33
J45
J44 DI±1720
± DIAGNOSTICSBODY CONTROL SYSTEM
1914 Author: Date:
2005 SEQUOIA (RM1146U)
Door lock motor circuit
CIRCUIT DESCRIPTION
The body ECU actuates the door lock motor when it receives a motor drive signal from the wireless transmit-
ter or an ECU via BEAN.
WIRING DIAGRAM
DI573±11

I24356
32
1J 1E W±RBody ECU
RDA ECU±B
4
52D
5
4
B5PRG B
OW±R
B5 5
IG1
BatterySHORT PIN Engine Room J/B
1
2C8
Sub J/B No. 3
3A2
3A1
RDA PRG W2
Wireless Door
Control Receiver
+B
EV
R±G 3
2 W±RInstrument Panel J/B
F10
Fusible
Link
Block
BW±R
A J43
J/C
O
A
± DIAGNOSTICSBODY CONTROL SYSTEM
DI±1737
1931 Author: Date:
2005 SEQUOIA (RM1146U)
Wireless door lock receiver circuit
CIRCUIT DESCRIPTION
The signal from the transmitter is sent to the body ECU through RDA line of the wireless door control receiver.
RDA line is diagnosed by the body ECU, check DTC also in case of the failure of the wireless function.
WIRING DIAGRAM
DI6LV±13

I18739
2
1
BUZZERLG7
IA1
EDBody ECU
W1
Wireless Door
Lock Buzzer
BZR LG
B715
W±B
A
J28
J/C
A
± DIAGNOSTICSBODY CONTROL SYSTEM
DI±1741
1935 Author: Date:
2005 SEQUOIA (RM1146U)
Wireless door lock buzzer circuit
CIRCUIT DESCRIPTION
The body ECU receives a door OPEN/CLOSE demand signal from the wireless transmitter via the wireless
door lock receiver. The ECU then sounds the wireless door lock buzzer as an answer back.
WIRING DIAGRAM
DI6LW±13

DIDF7±01
I28466
DLC 3Front
Passenger
Door ECUBody ECU
A/C ECU Combination
MeterBack Door
ECUDriver Door
ECU
MPX1
MPX2
MPX3
Slide Roof
ECU Memory
Seat ECU
& SwitchMPX1 MPX2 MPX1 MPX2 MPX1 MPX2
MPX± MPX+
MPX1 MPX1
SILAutomatic Light
Control Sensor
Wireless Door
Control Receiver
Airbag Sensor Assy
Diagnostic Bus
BEANCLTS
CLTB
CLTE
PRG
GSW
OBD2PDA DI±1888
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
2082 Author: Date:
2005 SEQUOIA (RM1146U)
SYSTEM DIAGRAM

I15555
Body ECU W2
Wireless Door Lock
Control Receiver
2PRG
RDA 4 5
V
R±G 3
B5 PRG
RDAB5
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
DI±1933
2127 Author: Date:
2005 SEQUOIA (RM1146U)
DTC B1242 Wireless door lock tuner circuit mal-
function
CIRCUIT DESCRIPTION
This DTC is indicated when ground short of the RDA terminal is detected.
DTC No.DTC Detecting ConditionTrouble Area
B1242Ground short of RDA circuit

Wireless door lock control receiver

Wire harness

Body ECU
WIRING DIAGRAM
DI638±10

I26946
Airbag Sensor Assembly Body ECU
A2018
GSW16
B6GSW Instrument Panel J/B
1A7
1B3
GR±R
B
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
DI±1935
2129 Author: Date:
2005 SEQUOIA (RM1146U)
DTC B1243 GSW terminal circuit malfunction
CIRCUIT DESCRIPTION
This DTC is indicated when open or ground short of the GSW terminal is detected.
DTC No.DTC Detection ConditionTrouble Area
B1243Open or ground short of GSW circuit

Airbag sensor assembly

Wire harness

Body ECU
WIRING DIAGRAM
DI1T3±09

I24369
A27
Automatic Light Control
Sensor
B6 12
CLTB CLTS
CLTEBody ECU
R±GY
1 4
34
3
BRB6
B6 CLTB CLTS
CLTE
± DIAGNOSTICSMULTIPLEX COMMUNICATION SYSTEM
DI±1937
2131 Author: Date:
2005 SEQUOIA (RM1146U)
DTC B1244 Light sensor circuit malfunction
CIRCUIT DESCRIPTION
This DTC is indicated when failure of the light sensor circuit is detected.
DTC No.DTC Detecting ConditionTrouble Area
B1244
Malfunction of automatic light control sensor

Open or short in automatic light control sensor circuit
Automatic light control sensor

Wire harness

Body ECU
WIRING DIAGRAM
DI639±08

I36938I28293
Stereo Component Amplifier Assy:
RR+
FL+RL+
WFL+
RR±FL±
RL± WFL± WFR±
WFR+
FR± FR+
S9
I28355
Rear Speaker Connector Front View:
R10
R9
I28757
Front Door Speaker Assy and Woofer
Connector Front View:
F14
F15
I28758
Tweeter Connector Front View:
T12
T13
± DIAGNOSTICSAUDIO SYSTEM
DI±2017
2211 Author: Date:
2005 SEQUOIA (RM1146U)
2 Check harness and connector (Stereo component amplifier assy ± Speaker
assy).
PREPARATION:
Disconnect the connectors from the radio receiver assy and
speakers.
CHECK:
Measure the resistance between the speaker and the stereo
component amplifier to check for an open circuit in the wire har-
ness.
OK:
Below 1 W
CHECK:
Measure the resistance between each speaker and body
ground to check for a short circuit in wire harness.
OK:
10 kW or higher
HINT:
Refer to the wiring diagram for connection of each terminal.
NG Repair or replace harness or connector.
OK